Participants dressed as Vikings pose on their longboat during the annual Up Helly Aa festival in Lerwick, Shetland Islands on January 29, 2013. Up Helly Aa celebrates the influence of the Scandinavian Vikings in the Shetland Islands and culminates with up to 1,000 'guizers' (men in costume) throwing flaming torches into their Viking longboat and setting it alight later in the evening.

Photo: AFP, AFP/Getty Images

Participants dressed as Vikings pose on their longboat during the...

Participants dressed as Vikings pose on their longboat during the... Photo-4108861.55925 - SFGate

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Participants dressed as Vikings pose on their longboat during the annual Up Helly Aa festival in Lerwick, Shetland Islands on January 29, 2013. Up Helly Aa celebrates the influence of the Scandinavian Vikings in the Shetland Islands and culminates with up to 1,000 'guizers' (men in costume) throwing flaming torches into their Viking longboat and setting it alight later in the evening.

Photo: AFP, AFP/Getty Images

Participants dressed as Vikings pose on their longboat during the...

Participants dressed as Vikings pose on their longboat during the... Photo-4108862.55925 - SFGate

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Participants dressed as Vikings pose beside their longboat during the annual Up Helly Aa festival in Lerwick, Shetland Islands on January 29, 2013. Up Helly Aa celebrates the influence of the Scandinavian Vikings in the Shetland Islands and culminates with up to 1,000 'guizers' (men in costume) throwing flaming torches into their Viking longboat and setting it alight later in the evening.

Participants dressed as Vikings march past during the annual Up Helly Aa festival in Lerwick, Shetland Islands on January 29, 2013. Up Helly Aa celebrates the influence of the Scandinavian Vikings in the Shetland Islands and culminates with up to 1,000 'guizers' (men in costume) throwing flaming torches into their Viking longboat and setting it alight later in the evening.

Photo: AFP, AFP/Getty Images

Participants dressed as Vikings march past during the annual Up...

Participants dressed as Vikings march past during the annual Up... Photo-4108867.55925 - SFGate

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Participants dressed as Vikings march past during the annual Up Helly Aa festival in Lerwick, Shetland Islands on January 29, 2013. Up Helly Aa celebrates the influence of the Scandinavian Vikings in the Shetland Islands and culminates with up to 1,000 'guizers' (men in costume) throwing flaming torches into their Viking longboat and setting it alight later in the evening.

Photo: AFP, AFP/Getty Images

Participants dressed as Vikings march past during the annual Up...

Participants dressed as Vikings march past during the annual Up... Photo-4108865.55925 - SFGate

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Participants dressed as Vikings march past during the annual Up Helly Aa festival in Lerwick, Shetland Islands on January 29, 2013. Up Helly Aa celebrates the influence of the Scandinavian Vikings in the Shetland Islands and culminates with up to 1,000 'guizers' (men in costume) throwing flaming torches into their Viking longboat and setting it alight later in the evening.

Photo: AFP, AFP/Getty Images

Participants dressed as Vikings march past during the annual Up...

Participants dressed as Vikings march past during the annual Up... Photo-4108868.55925 - SFGate

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Participants dressed as Vikings prepare to participate in the annual Up Helly Aa festival in Lerwick, Shetland Islands on January 29, 2013. Up Helly Aa celebrates the influence of the Scandinavian Vikings in the Shetland Islands and culminates with up to 1,000 'guizers' (men in costume) throwing flaming torches into their Viking longboat and setting it alight later in the evening.

Participants dressed as Vikings look through a programme of events as they prepare to participate in the annual Up Helly Aa festival in Lerwick, Shetland Islands on January 29, 2013. Up Helly Aa celebrates the influence of the Scandinavian Vikings in the Shetland Islands and culminates with up to 1,000 'guizers' (men in costume) throwing flaming torches into their Viking longboat and setting it alight later in the evening.

Photo: AFP, AFP/Getty Images

Participants dressed as Vikings look through a programme of events...

Participants dressed as Vikings look through a programme of events... Photo-4108871.55925 - SFGate

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Participants dressed as Vikings enjoy as hot drink as they prepare to participate in the annual Up Helly Aa festival in Lerwick, Shetland Islands on January 29, 2013. Up Helly Aa celebrates the influence of the Scandinavian Vikings in the Shetland Islands and culminates with up to 1,000 'guizers' (men in costume) throwing flaming torches into their Viking longboat and setting it alight later in the evening.

A participant dressed as a Viking has his hair braided as he prepares to participate in the annual Up Helly Aa festival in Lerwick, Shetland Islands on January 29, 2013. Up Helly Aa celebrates the influence of the Scandinavian Vikings in the Shetland Islands and culminates with up to 1,000 'guizers' (men in costume) throwing flaming torches into their Viking longboat and setting it alight later in the evening.

Photo: AFP, AFP/Getty Images

A participant dressed as a Viking has his hair braided as he...

A participant dressed as a Viking has his hair braided as he... Photo-4108873.55925 - SFGate

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A young participant dressed as a Viking looks on as he prepares to participate in the annual Up Helly Aa festival in Lerwick, Shetland Islands on January 29, 2013. Up Helly Aa celebrates the influence of the Scandinavian Vikings in the Shetland Islands and culminates with up to 1,000 'guizers' (men in costume) throwing flaming torches into their Viking longboat and setting it alight later in the evening.

Photo: AFP, AFP/Getty Images

A young participant dressed as a Viking looks on as he prepares to...

A young participant dressed as a Viking looks on as he prepares to... Photo-4108874.55925 - SFGate

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A young participant dressed as a Viking looks on as he prepares to participate in the annual Up Helly Aa festival in Lerwick, Shetland Islands on January 29, 2013. Up Helly Aa celebrates the influence of the Scandinavian Vikings in the Shetland Islands and culminates with up to 1,000 'guizers' (men in costume) throwing flaming torches into their Viking longboat and setting it alight later in the evening.

Photo: AFP, AFP/Getty Images

A young participant dressed as a Viking looks on as he prepares to...

A young participant dressed as a Viking looks on as he prepares to... Photo-4108875.55925 - SFGate

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Participants dressed as Vikings march past during the annual Up Helly Aa festival in Lerwick, Shetland Islands on January 29, 2013. Up Helly Aa celebrates the influence of the Scandinavian Vikings in the Shetland Islands and culminates with up to 1,000 'guizers' (men in costume) throwing flaming torches into their Viking longboat and setting it alight later in the evening.

Photo: AFP, AFP/Getty Images

Participants dressed as Vikings march past during the annual Up...

Participants dressed as Vikings march past during the annual Up... Photo-4108877.55925 - SFGate

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Participants dressed as Vikings march past during the annual Up Helly Aa festival in Lerwick, Shetland Islands on January 29, 2013. Up Helly Aa celebrates the influence of the Scandinavian Vikings in the Shetland Islands and culminates with up to 1,000 'guizers' (men in costume) throwing flaming torches into their Viking longboat and setting it alight later in the evening.

Photo: AFP, AFP/Getty Images

Participants dressed as Vikings march past during the annual Up...

Participants dressed as Vikings march past during the annual Up... Photo-4108878.55925 - SFGate

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Members of the 2013 'Jarl Squad' prepare for the annual Up Helly Aa festival which culminates in the burning of a Viking Galley in Lerwick, Shetland Islands on January 29, 2013. Up Helly Aa celebrates the influence of the Scandinavian Vikings in the Shetland Islands and culminates with up to 1,000 'guizers' (men in costume) throwing flaming torches into their Viking longboat and setting it alight later in the evening.

Photo: AFP, AFP/Getty Images

Members of the 2013 'Jarl Squad' prepare for the annual Up Helly Aa...

Members of the 2013 'Jarl Squad' prepare for the annual... Photo-4108880.55925 - SFGate

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Members of the 2013 'Jarl Squad' prepare for the annual Up Helly Aa festival which culminates in the burning of a Viking Galley in Lerwick, Shetland Islands on January 29, 2013. Up Helly Aa celebrates the influence of the Scandinavian Vikings in the Shetland Islands and has employed this theme in the festival since 1870. The event culminates with up to 1,000 'guizers' (men in costume) throwing flaming torches into their Viking longboat.

Photo: AFP, AFP/Getty Images

Members of the 2013 'Jarl Squad' prepare for the annual Up Helly Aa...

Members of the 2013 'Jarl Squad' prepare for the annual... Photo-4108881.55925 - SFGate

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Members of the 2013 'Jarl Squad' take part in the annual Up Helly Aa festival which culminates in the burning of a Viking Galley in Lerwick, Shetland Islands on January 29, 2013. Up Helly Aa celebrates the influence of the Scandinavian Vikings in the Shetland Islands and has employed this theme in the festival since 1870. The event culminates with up to 1,000 'guizers' (men in costume) throwing flaming torches into their Viking longboat.

Photo: AFP, AFP/Getty Images

Members of the 2013 'Jarl Squad' take part in the annual Up Helly...

Members of the 2013 'Jarl Squad' take part in the annual... Photo-4108882.55925 - SFGate

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Members of the 2013 'Jarl Squad' take part in the annual Up Helly Aa festival which culminates in the burning of a Viking Galley in Lerwick, Shetland Islands on January 29, 2013. Up Helly Aa celebrates the influence of the Scandinavian Vikings in the Shetland Islands and has employed this theme in the festival since 1870. The event culminates with up to 1,000 'guizers' (men in costume) throwing flaming torches into their Viking longboat.

Photo: AFP, AFP/Getty Images

Members of the 2013 'Jarl Squad' take part in the annual Up Helly...

Members of the 2013 'Jarl Squad' take part in the annual... Photo-4108883.55925 - SFGate

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Members of the 2013 'Jarl Squad' take part in the annual Up Helly Aa festival which culminates in the burning of a Viking Galley in Lerwick, Shetland Islands on January 29, 2013. Up Helly Aa celebrates the influence of the Scandinavian Vikings in the Shetland Islands and has employed this theme in the festival since 1870. The event culminates with up to 1,000 'guizers' (men in costume) throwing flaming torches into their Viking longboat.

Photo: AFP, AFP/Getty Images

Members of the 2013 'Jarl Squad' take part in the annual Up Helly...

Members of the 2013 'Jarl Squad' take part in the annual... Photo-4108884.55925 - SFGate

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Members of the 2013 'Jarl Squad' take part in the annual Up Helly Aa festival which culminates in the burning of a Viking Galley in Lerwick, Shetland Islands on January 29, 2013. Up Helly Aa celebrates the influence of the Scandinavian Vikings in the Shetland Islands and has employed this theme in the festival since 1870. The event culminates with up to 1,000 'guizers' (men in costume) throwing flaming torches into their Viking longboat.

Photo: AFP, AFP/Getty Images

Members of the 2013 'Jarl Squad' take part in the annual Up Helly...

Members of the 2013 'Jarl Squad' take part in the annual... Photo-4108885.55925 - SFGate

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Members of the 2013 'Jarl Squad' take part in the annual Up Helly Aa festival which culminates in the burning of a Viking Galley in Lerwick, Shetland Islands on January 29, 2013. Up Helly Aa celebrates the influence of the Scandinavian Vikings in the Shetland Islands and has employed this theme in the festival since 1870. The event culminates with up to 1,000 'guizers' (men in costume) throwing flaming torches into their Viking longboat.

Photo: AFP, AFP/Getty Images

Members of the 2013 'Jarl Squad' take part in the annual Up Helly...

Members of the 2013 'Jarl Squad' take part in the annual... Photo-4108886.55925 - SFGate

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Members of the 2013 'Jarl Squad' take part in the annual Up Helly Aa festival which culminates in the burning of a Viking Galley in Lerwick, Shetland Islands on January 29, 2013. Up Helly Aa celebrates the influence of the Scandinavian Vikings in the Shetland Islands and has employed this theme in the festival since 1870. The event culminates with up to 1,000 'guizers' (men in costume) throwing flaming torches into their Viking longboat.

Photo: AFP, AFP/Getty Images

Members of the 2013 'Jarl Squad' take part in the annual Up Helly...

Members of the 2013 'Jarl Squad' take part in the annual... Photo-4108887.55925 - SFGate

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Members of the 2013 'Jarl Squad' take part in the annual Up Helly Aa festival which culminates in the burning of a Viking Galley in Lerwick, Shetland Islands on January 29, 2013. Up Helly Aa celebrates the influence of the Scandinavian Vikings in the Shetland Islands and has employed this theme in the festival since 1870. The event culminates with up to 1,000 'guizers' (men in costume) throwing flaming torches into their Viking longboat.

Photo: AFP, AFP/Getty Images

Members of the 2013 'Jarl Squad' take part in the annual Up Helly...

Members of the 2013 'Jarl Squad' take part in the annual... Photo-4108888.55925 - SFGate

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Members of the 2013 'Jarl Squad' take part in the annual Up Helly Aa festival which culminates in the burning of a Viking Galley in Lerwick, Shetland Islands on January 29, 2013. Up Helly Aa celebrates the influence of the Scandinavian Vikings in the Shetland Islands and has employed this theme in the festival since 1870. The event culminates with up to 1,000 'guizers' (men in costume) throwing flaming torches into their Viking longboat.

Photo: AFP, AFP/Getty Images

Members of the 2013 'Jarl Squad' take part in the annual Up Helly...

Members of the 2013 'Jarl Squad' take part in the annual... Photo-4108889.55925 - SFGate

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Members of the 2013 'Jarl Squad' take part in the annual Up Helly Aa festival which culminates in the burning of a Viking Galley in Lerwick, Shetland Islands on January 29, 2013. Up Helly Aa celebrates the influence of the Scandinavian Vikings in the Shetland Islands and has employed this theme in the festival since 1870. The event culminates with up to 1,000 'guizers' (men in costume) throwing flaming torches into their Viking longboat.

Photo: AFP, AFP/Getty Images

Members of the 2013 'Jarl Squad' take part in the annual Up Helly...

Members of the 2013 'Jarl Squad' take part in the annual... Photo-4108890.55925 - SFGate